[-5, -1, 0, 1, 2, 3, 9]
[1, 3, 4, 5, 6, 9]
[-2, 1, 3, 4, 5, 6]
[3, 4, 5, 6, 9, 11]
[-5, [-1,0,1,2,3], 9]
[1, [3,4,5,6], 9]
[-2, 1, [3,4,5,6]]
[[3,4,5,6], 9, 11]